Oil-burner.



A. P. DORAN.

OIL BURNER. Y APPLICATION FILED APR- 20, 1916- I Patented Jan. 16,1917.

3 SHEETS-SHEET I.

A. P. DURAN.

OIL BURNER.

APPLICATION FILED APR-20. I916- Patented Jan. 16,1917.

3 SHEETS-SHEET 3- Jim (M17064, 5/ WW 2 1 afliys.

ALBERT P. DORAN, OF CHICAGO, ILLINOIS.

OIL-BURNER.

I Specification of Letters Patent. Patented J an, 16, 1917,

Application filed April 20, 1916. Serial No. 92,363.

. To all whom it may concern:

Be it known that I,,ALBER'r P. DORAN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Oil-Burners, of which the following is a specification.

This invention relates to an oil burner of that type more particularly adapted for installation and use in the common form of domestic cook stove or coal range, and designed to supplant the-use of coal, wood,

or other like inflammable material heretofore used as the heating agent in such a type of stove.

Among the objects of my invention is to improve the construction of an oil burner of the kind referred to, in the several particulars as will hereinafter more fully appear, and to provide in particular an oil burner which may be readily and easily installed as a complete unit in a stove of the type mentioned and have aplurality of separate and independent, but communicating burners, each being located in operative position beneath one of the stove holes in the top plate of the stove, so that the latter will be enabled to have a flame or a source of heat at each stove hole and thereby permit such stove to be used in a manner similar to the modern type of kitchen gas range.

An oil burner structure embodying the features of my invention comprises, in general, a main burner and generator, the latter receiving from a suitable exterior source a liquid hydrocarbon oil, such as commercial kerosene, and, by means of heat supplied mainlv by the flame produced bv the main burner, convert such oil into a gas or vapor, which is subsequently mixed with air drawn into the generator during the operation thereof, and supply such gaseous mixture to the main burner, where it is ignited and used to produce heat for the purpose of cooking or otherwise. Connected with the main burner are a plurality of auxiliary burners, each being so disposed from the main burner, as to be located in operative position beneath one of the stove holes-in the top plate of the stove towhich my device is applied. A suitable form of valve is employed for controllingthe supply of gas from the generator to the main or oil vapor a valve mechanism is further burner, and

used for controlling the supplv of combustible gas from the main burner to each of the auxiliary burners, so that any one or all of the latter may be ignited while the main burner is in operation, thereb making it possible to secure a flame as a source of heat forcooking or ,otherwise at the articular stove hole desired, without requiring that all of the burners. of my device be put into use and thereby heating up the entire stove as well as wasting'an unnecessary amount of oil and heat.

The invention conslsts further in the mat-' ters hereinafter described and more particularly pointed out in the appended claims.

In the accompanying drawings-Figure 1- is a top plan view of an oil burner constructed in accordance with my invention; Fig. 2 is a vertical sectional view, with parts in elevation, taken on the indirect line 2-2 of Fig. 1; Fig. 3 is a vertical sectional view,

taken on line 3-3v of Fig. 1; Fig. 4 1s a horizontal sectional view, taken through the casing of the main burner and showing the valve mechanism for controlling the supply of gas from the main to the auxiliary burners; Fig. 5 is a vertical sectional view taken on line 55 of Fig. 1; Fig. 6 is a top plan view of a domestic cook stove or coal range of the usual type and showing applied thereto my oil burner construction; and Fig. 7 is a front view looking into the fire-box and ash pit of said stove, the doors of such compartments being open and omitted for the sake of clearness of illustration.

In the accompanying drawings, I have shownin detail one preferred'form of oil burner embodying the features of my invention, and, as illustrated, said burner comprises a combined main burner and generator 10 and a plurality of auxiliary burners 11, 11, 11, and 12, the latter being suitably casingl l, which as shown in the drawings is circular in form, but it is of course to be understood that any other shape may be provided to meet the conditions presented. Said burner casing 14 has a bottom wall 15, upright side walls 16, and a top wall-or cover plate 17 Said. cover plate 17 is provided with a plurality of burner openings,

10. As shown in Fig. 2, said generator tube 20 is located directly above certain of the slots 18 which extend beyond the sides of 'said tube, so that the flame of the burner may substantially envelop said tube and thereby impart the required amount of heat thereto. Substantially surrounding said burner casing 14 is a trough shaped flange 21, preferably made integral with said burner casing and located adjacent said generator tube 20. Located in said trough is a wick 22, adapted to absorb alcohol or the like. Said trough and wick constitute the starting or pilot burner and when ignited produce a flame that envelops the generator tube and acts to convert the liquid oil therein into a gaseous form in the starting of the burner. Said generator tube 20 is supported above the burner plate 17 by clamp members 23, of such construction as to permit the generator tube to be disconnected from said burner plate. One end of said generator tube extends beyond the burner casing 14 burner casing 14.

and is provided with a coupling member 24, y means of which said tube may be connected with'a feed pipe 25 leading to the tank 26 containing a supply of liquid hydrocarbon oil under pressure. (See Fig. 6.) The opposite end of said tube 20 opens into a hollow valve casing 27, arranged exterior to and secured to the upright wall of said (See Fig. 3.) Said valve casing opens into an air chamber 28 through an orifice or port 29. Said air chamber 28 is preferably formed as a part of the burner casing 14, and is provided in its bottom wal with an air inlet opening 30. Located in said burner casing 14 is a short pipe section 31, which opens at one end into said air chamber through the inner wall 32 thereof. Saidpipe 31 is arranged directly opposite said orifice 29. To control the supply of gas or vapor from the generator tube 20 to the air chamber 28, and thence to the main burner casing 14, I provide an endwise movable, screw-threaded valve member 33 in said valve casing 27. The outer end of said valve member is provided with an operating handle 34, which at its inner end is provided with a valve head 35 cooperating with a valve seat 36. As shown in Fig. 3, said valve member is provided with a needle 37, adapted to extend into and close said orifice 29. When the valve member 33 is moved into its open position, said needle is withdrawn from said orifice and the'gas generated in said tube 20 permitted to enter the burner casing 14. When said valve member 33 is moved into its closed position, said needle is moved into said orifice and acts to close as well as clean the same of any carbon deposits. Also the edge of said orifice 29 serves to scrape or clean the needle. The orifice 29 is small enough in diameter to effectively prevent the gas from flowing back into the tube 20 from the burner casing, and thus avoiding the tendency to produce. back pressure in the tank 26 with the attendant result of maintaining a steady flame at each and all of the burners. The gas in flowing from the generator tube 20 into the air chamber 28 and'pipe 31 acts to draw air into said air chamber through its air inlet opening 30.

In order to control the supply of mixed air and gas from the main burner casing 14 to each of the auxiliary burners 11, 11, 11, I provide a valve mechanism of the type shown in Fig. 4. As shown, each pipe 13, leading to one of theauxiliary burners 11, opens into the main burner casing 14 through one of the walls thereof. Located in said casing are valve members 38, 39, and 40, one for each of said pipes 13 that lead to said auxiliary burners 11. Said valve members when closed seat against the end of the associated pipe 13, and thereby shut oil the flow of gas thereto. Said valve members are manually operable, and each is provided with a stem 41,42, and 43, all being endwise movable and extending outwardly through the upright wall of the main burner casing 14. Each stem is provided at its outer end with an operating handle 44. As two of the pipes 13, 13 leading to two of the auxiliary burners 11 are arranged at angles to the third pipe 13 leading to the remaining auxiliary burner 11, the valve stems 42, 43 are each connected with their valve members by a pivotally mounted bell-crank lever 45, 45, thereby permitting all of the stems to be arranged parallel to each other and extend beyond the main burner at a common place most accessible. If all of the valve members 38, 39, 40 are closed, it is apparent that no gas will be supplied to the auxiliary burners 11. If it is desired to use any one or all of the auxiliary burners 11 simultaneously with the main burner 10, the appropriate valve members 38, 39, 40 are opened. Moreover, by reason of such valve mechanism, the intensity of the flame at any one or all of the auxiliary burners 11 may be varied by regulating the valve members. In other words, the supply of gas from the main burner 10 to the auxiliary burners 11 may be controlled as desired.

To start the burners, a quantity of alcohol or the like is poured into the trough 21 and ignited, the needle valve 33at this time bewhereupon a supply of gas flows to the main I burner and there ignited. The generation of gas in the tube is continued by the heat of the fiame of the main burner 10. By

opening the valve members 38, 39, 40, gas is supplied to the auxiliary burners and there ignited. The pipes 13 are large enough in diameter so as to permit a free and rapid 4 flow of gas therethrough.

Each auxiliary burner 11 comprises a hollow casing, the removable top or cover plate 11 of which is provided with a plurality of rows of burner slots 11". Said cover plate 11 is detachably secured to the burner casing by fastening bolts 11, as ShQWIl in Fig. 5. The top plate 17 of the main burner 10 is similarly secured.

In Figs. 6 and 7, I have shown my burner construction as applied to the common type of domestic cook stove or coal range 46. As shown, said stove is provided with a top plate of the usual type and having therein a plurality of openings or stove holes 48, 48, which are normally closed by the usual kind of removable stove lids (not shown). Said stove is provided with the usual fire-box or chamber 49, the bottom of which is formed by a grate 50. Below the latter is the-ashpit 51. Both the fire-box andash-pit are closed at the front by the usual hinged doors, which are not shown in the drawings. Said fire-box is provided with oppositely disposed sidewalls'52, 53. Adjacent to the former are arranged the water tubes 54 coupled with the hot water boiler, generally employed with such a type of stove.

The other wall .53 forms one of the side.

walls of the baking oven. My burner device is made as a complete unit and is placed in the stove by removing thenecessary parts of the top plate 47. When applied, the com-j bined main burner and generator 10-is sup- .ported by a member 55 above the fire-box and directly beneath the first stove hole 48 (Fig. 6). The auxiliary burners 11, 11, 11 are positioned directly below the other stove holes, as shown in said Fig. 6. The other auxiliary burner 12 constitutes the oven burner, and is located in the fire-box below the main burner 10. Said oven burner 12 comprises an elongated pipe preferably made rectangular in cross-section and hav--- ing a row of burner slots 56 extending across one of its longitudinal edges. Said oven burner 12 extends lengthwise of the fire-box,

and is rotatively connected with the lower end of its pipe 13 by a pipe-section 57 of such a shape as to cause the oven burner to be offset laterally from the main burner 10.

(See Figs, 2 and- 7 By reason of such construct on the oven burner .12. rnay be swung from side to side of the main burner 10 and thus be moved from a position directing its flame against the oven wall 53, as shown in full lines in Fig. 7, to a position directing its flame against the water back wall 52, as shown in dotted lines in said Fig. 7 Consequently, the burner 12 may be utilized to ap-- ply heat directly to either the oven or the water back, as desired. Any. suitable typeof construction may be employed for ro' tatably connecting the burner 12 with the main burner 10, but, as shown in Fig. 2, such construction embraces a flanged coupling member 57 secured to said pipe 57. The

pipe 13 is provided'with anannular-flange 53, engaged by said coupling sleeve 57. To

prevent the burner 12 from dropping below outer end of the pipe 13. Said valve memher is provided with an operating stem 59, at the outer end of which is a handle 44:. As shown in Fig. 2, the bottom wall 15 of the main burner casing is depressed or dishshaped, and the pipe 13 opens through the center thereof. This feature of construction is provided so that any free liquid oil that may find its way from the supply tank into the main burner casing will flow by gravity into the pipe 13, from which it may be discharged into the ash-pit of the stove through a suitable drain cock (not shown) provided for that purpose in said pipe 13. To complete the installation of my device, the gen-' era-tor tube 20 is connected with the supply pipe 25. -'The parts are so arranged that all of the handles of the valve members are located in front of the main burner 10 and thereby readily accessible from the front of the stove.

When said burner construction is applied to a stove, I may produce a flame at the stovehole beneath which the main burner 10 is located, while all of the other burners remain out or inoperative. Thus only one fl'ame is used when it is desired to'cook over one stove hole. Consequently, it is unnecessary to heat the entire stove with anatte'ndant waste of oil' and heat. If it is desired to cook over one of the other of the stove holes. the desired auxiliary burners may be ignited by first opening the required valve members 38, 39, 40. If it is desired to use the oven, the oven burner 12 is swung into a position adjacent the oven wall 53, the valve 58 opened, and the oven burner 12 ignited. On the 'other handflf it is desired to heat water for the boiler of the stove, the oven burner 12 is swung into a position adjacent the water back wall 52. From the foregoing it is clear that, while the main burner is in operation, any one or all of the auxiliary burners 11, 12 may be used, and thus the stove operated in a manner similar to the modern type of domestic gas range. By operating the valve members associated with each burner, a larger or a simmering flame may be produced so as to regulate the heat as the process of cooking progresses. With my novel burner construction, an ordinary domestic cook stove or cooking range may be readily converted into a stove operating similar to a gas stove, and thus avoid the use of coal, wood, or other inflammable material heretofore used in such a type of stove. It is of course to be understood that my burner construction is not limited in its application to a coal stove of the type referred to, and that I have merely illustrated its application to such type of stove in order to clearly set forth the operation and advantages of my device. When my burner device has been applied to a stove of the kind referred to, I may remove those stove lids beneath which the main and auxiliary burners 10, 11 are located, and substitute for each stove lid removed a grille 60, as shown in Fig. 6, the grille serving to support the cooking utensil placed over the open stove hole.

Although I have shown and described in detail one preferred form of burner construction embodying the features of my invention, it is of course to be understood that the same may be variously changed and modified without departing from the spirit and scope ofmy invention, and I do not wish to be limited to the exact details of construction shown and arrangement of parts illustrated, except as set forth in the an nexed claims.

I claim as myinvention:

1. A device of the character described, comprising a main burner having a hollow casing provided with burner openings, a

generator for converting a liquid hydrocarbon oil into a combustible gaseous form and adapted to supply such gas to the hollow casing of said main burner, an auxiliary burner having a hollow casing provided with burner openings, a conduit connecting said auxiliary burner with said main burner for supplying the hollow casing of the aux iliary burner with gas from the hollow casing of the main burner, a valve member interposed between said generator and said main burner, and valve means for controlling the supplyof gas from the main burner to the auxiliary burner.

2. A device of the character described, comprising a main burner having a hollow casing provided with burner openings, a generator for converting a liquid hydroemma carbon oil into a combustible gaseous form and adapted to supply such gas to the hollow casing of said main burner, a plurality of auxiliary burners, each having a hollow casing provided with burner openings, a conduit connecting each auxiliary burner with said main burner, said conduits serving to supply the hollow casing of each auxiliary burner with gas from the hollow casing of said main burner, a valve member interposed between said generator and said main burner, and valve means for controlling the supply of gas from said main burner to each auxiliary burner.

A device of-the character described, comprising a main burner having a hollow casing, the top wall of which is provided with burner openings, a generator for converting a liquid hydrocarbon oil into a combustible gaseous form and adapted to supply such gas to the hollow casing of the main burner, said generator embracing a hollow conduit having a single convolution located above the top wall of said main burner, an auxiliary burner having a hollow casing provided with burner openings, a pipe connecting said auxiliary burner with said main burner for supplying the hollow casing of the auxiliary burner with gas from the hollow casing of said main burner, a valve member interposed between said generator and said main burner, and valve means for controlling the supply of gas from the main burner to the auxiliary burner.

4. A device of the character described, comprising a main burner having a hollow casing, the top wall of which is provided with burner openings, a generator for converting a liquid hydrocarbon oil into a combustible gaseous form and adapted to supply such gas to the hollow casing of the main burner, said generator embracing a hollow conduit having a single convolution located above the top wall of said mair. burner, a plurality of auxiliary burners, each having a hollow casing provided with burner openings, a pipe connecting eacn auxiliary burner with said main burner, said pipes serving to supply the hollow casing of each auxiliary burner with gas from the hollow casing of said main burner, a valve member interposed between said generator and said main burner, and valve means for controlling the supply of gas from said main burner to each auxiliary burner.

5. device of the character described, comprlsmg a main burner having a hollow casing, the top wall of which is provided burner with said main burner, a valve member interposed between said conduit and said main burner, and a valve member for each. of said auxiliary burners, said last named valve membersbeing located in the hollow casing of the main burner.

6. A burner of the character described, comprising a hollow casing provided with top, bottom, and side walls, the top wall being provided with one or more burner openings, a generator for converting a liquid hydrocarbon oil into a combustible gaseous form, embracing a hollow conduit having a single convolution located above said burner casing and extending substantially around the same adjacent the outer edge of said top wall, said burner casing being provided with a chamber having an air inlet opening, a pipe located in said burner casing and opening at one end into said air chamber, said conduit opening through the side wall of said burner easing into said air chamber opposite said pipe, a valve member interposed between said conduit and said air chamber, and said side wall being provided with a flange forming a trough adjacent said conduit.

7. A device of the character described, comprising a main burner, a pipe connected with said main burner, an auxiliary burner having a hollow casing provided with a plurality of burner openings, said auxiliary burner having swinging connection with said pipe, and stop-members on said pipe and auxillary burner for limiting the swinging movement of said auxiliary burner and for supporting the latter at the ends of its swinging movement.

8. A device of the character described, comprising a main" burner, a pipe-section connected with said main burner, an auxiliary burner, a pipe-section connected w1th said auxiliary burner, said pipe-sections meeting end to end and having rotative connection with each other whereby said au x1liary burner may be swung on opposlte sides of said main burner, and stop-members on said pipe-sections for limiting the swinging movement of said auxiliary burner and for supporting the latter at the ends of its swinging movement.

9. The combination with a stove having a fire-box provided with oppositely disposed side walls, of a generator for converting a liquid hydrocarbon oil into a combustible gaseous form, a main burner connected w1th said generator, an auxiliary burner located in said fire-box and being in communication with said main burner, means connect ing said auxiliary burner with said main burner whereby the former may be swung from a position adjacent one of the side walls of said fire-box .into a position adj acent the opposite side wall thereof, and stopmeans for a top plate memberson said main and auxiliary burners for lrrmtmg the swinging movement of said auxiliary burner and for holding the latter adjacent said side walls.

10. The combination with a a top plate provided with a plurahty of stove holes, of a mainburner having a hollow ca slng and located beneath one of said stove holes, a generator tube having a single convolution located above said main burner and openlng into the hollow casing of the same through one of the walls thereof, a plurality of auxiliary burners, each being located beneath another of said stove holes, a

1pc connecting each auxiliary burner with the hollow casing of valve member interposed between said generator tube and, said main burner, and valve controlling the supply of gas from the hollow casing of the main burner to each of the auxiliary burners.

11. The combination provided with a plurality of stove holes, of a main burner having a. hollow casing provided with burner openings and located beneath one of said stove holes, a generator carbon oil into a combustible gaseous form and adapted to supply such gas to the hollow casing of said main burner, an auxiliary burner having a hollow casing provided with burner openings and located beneath another of said stove holes, a conduit connecting said main burner with said auxil-f stove having iary burner, for supplyinggas to the hollow casing of said auxiliary burner from the hollow casing of said main burner, a valve member interposed between said generator and said main burner, and valve means for controlling main burner to said auxiliary burner.

12'. The combination with a stove having a top plate and a fire-box, the former being provided with aplurality of stove holes and the latter having oppositely disposed side walls, of a main burner having a hollow cas- 3 ing provided in its top wall with a plurality of burner openings and located beneath one of said stove 'holes, a generator for converting a liquid hydrocarbon oil into a combustible gaseous form and connected with said main burner, an auxiliary and an oven burner, each having a hollow casing provided with a plurality of burner openings,

tion adjacent the opposite side wall thereof,

the main burner, a v

with a stove having for converting a liquid hydro-' the supply of gas from said whereby the former may 1 a. valve member intez 'posed between my invention, I a my signature in the generator and said main burner, and. ,gzalve presence of two Witnesses, this 15th day of means for controlling the supply of gas from April, A. D. 1916.

the hollow casing of said main burner to the ALBERT P. DURAN. hollow casing of said auxiliary 'and oven Witnesses burners. EUGENE 0.. WANN,

In testimony that I claim the foregoing as CLARA PEOPLES. 

